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## 2.66.6

**`(fix):`** `MockServerTestGenerator` now normalizes nullable date-time query and header parameters to millisecond precision, matching the fix previously applied to `MockEndpointGenerator`. Without this, mock-server tests for nullable date-time fields emitted matchers like `"2024-01-15T09:30:00Z"` while the SDK actually sent `"2024-01-15T09:30:00.000Z"`.